Ios amazon s3中的多部分上载未调用委托

我使用多部分上传文件上传它的工作。但是，不呼叫代表如何呼叫代表

这是我的代码：

AmazonS3Client *s31 = [[AmazonS3Client alloc] initWithAccessKey:ACCESS_KEY_ID withSecretKey:SECRET_KEY];
            s31.endpoint = [AmazonEndpoints s3Endpoint:US_WEST_2];
            s31.timeout = 240;
            @try
            {
                [s31 createBucketWithName:bucket];

                S3InitiateMultipartUploadRequest *initReq = [[S3InitiateMultipartUploadRequest alloc] initWithKey:key inBucket:bucket];
                S3MultipartUpload *upload = [s31 initiateMultipartUpload:initReq].multipartUpload;
                S3CompleteMultipartUploadRequest *compReq = [[S3CompleteMultipartUploadRequest alloc] initWithMultipartUpload:upload];

                int numberOfParts = [self countParts:imageData];
                for ( int part = 0; part < numberOfParts; part++ ) {
                    NSData *dataForPart = [self getPart:part fromData:imageData];
                    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
                    [appDelegate.dataArray addObject:dataForPart];

                    // The S3UploadInputStream was deprecated after the release of iOS6.
                    NSInputStream *stream = [NSInputStream inputStreamWithData:dataForPart];
                    //if ( using3G ) {
                    // If connected via 3G "throttle" the stream.
                    //stream.delay = 0.2; // In seconds
                    //stream.packetSize = 16; // Number of 1K blocks
                    // }

                    S3UploadPartRequest *upReq = [[S3UploadPartRequest alloc] initWithMultipartUpload:upload];
                    upReq.partNumber = ( part + 1 );
                    upReq.contentLength = [dataForPart length];
                    upReq.stream = stream;

                    S3UploadPartResponse *response = [s31 uploadPart:upReq];
                    [compReq addPartWithPartNumber:( part + 1 ) withETag:response.etag];
                    NSLog(@"Coming222");
                }
                [s31 completeMultipartUpload:compReq];
                [self textfileupload];
            }
            @catch ( AmazonServiceException *exception )
            {
                isUpload=NO;
                [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];

                NSLog( @"Multipart Upload Failed, Reason: %@", exception  );
            }

AmazonS3Client*s31=[[AmazonS3Client alloc]initWithAccessKey:ACCESS\u KEY\u ID with secretkey:SECRET\u KEY]；
s31.endpoint=[Amazondpoints s3Endpoint:US_WEST_2]；
s31.0超时=240；
@试一试
{
[s31 createBucketWithName:bucket]；
S3InitiateMultipartUploadRequest*initReq=[[S3InitiateMultipartUploadRequest alloc]initWithKey:key inBucket:bucket]；
S3multipartPload*upload=[s31 initiateMultipartUpload:initReq].multipartPload；
S3CompleteMultipPartUploadRequest*compReq=[[S3CompleteMultipPartUploadRequest alloc]initWithMultipartPload:upload]；
int numberOfParts=[self countParts:imageData]；
对于（int part=0；part

---

请帮助我。

如果希望它调用委托方法，则需要执行此操作，就像对依赖委托方法的任何对象执行此操作一样：

 putObjectRequest.delegate = self;
 [putObjectRequest setDelegate:self];

如果您指的是如何使用AppDelegate实例：

AppDelegate*AppDelegate=（AppDelegate*）[[UIApplication sharedApplication]delegate]，然后仔细检查类型转换为AppDelegate指针是否正确。也许可以尝试另一种初始化/分配方法，因为我在依赖类型转换为cocoa指针的返回对象时遇到了问题